package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.exception.CustomException;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    DishService dishService;
    @Autowired
    SetmealService setmealService;
    @Override
    public boolean remove(Long id) {
        //通过Dish categoryId和CateGory id(等同于id)中有无相同来判断

        LambdaQueryWrapper<Dish> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        //判断Dish categoryId与删除的id是否有相同的
        lambdaQueryWrapper.eq(Dish::getCategoryId,id);
        int count1 = dishService.count(lambdaQueryWrapper);
        if(count1>0){
            throw new CustomException("分类下关联菜品，不能删除");
        }
        //通过 Setmeal categoryId和CateGory id中有无相同来判断
        LambdaQueryWrapper<Setmeal> lambdaQueryWrapper1 = new LambdaQueryWrapper<>();
        //判断Setmea categoryId与删除的id是否有相同的
        lambdaQueryWrapper1.eq(Setmeal::getCategoryId,id);
        int count2 = setmealService.count(lambdaQueryWrapper1);
        if(count2>0){
            throw new CustomException("分类下关联了套餐，不能删除!!!");
        }
//        super.removeById(id);
        return true;
    }
}
